Thanks for the guide. I,m not able to download the Deckkard software and please refer below.

Deckard's System Scanner interacts with a specific rootkit (tdssserv) in a way that may make your system unusable (altering the svchost netsvcs registry entry). This download link has been removed until a fix is released by Deckard. For your own protection, please do not attempt to download this tool from other sites.

Now STOP all your monitoring programs (Antivirus/Antispyware, Guards and Shields) as they could easily interfere with ComboFix.

Double click combofix.exe & follow the prompts.

When finished, it will produce a log. Please save that log to post in your next reply along with a fresh HJT log

Re-enable all the programs that were disabled during the running of ComboFix..

Note:Do not mouse-click combofix's window while it is running. That may cause it to stall.

CF disconnects your machine from the internet. The connection is automatically restored before CF completes its run. If CF runs into difficulty and terminates prematurely, the connection can be manually restored by restarting your machine.

Note: If you have used this particular scanner before, you MAY HAVE TO UNINSTALL the program through Add/Remove Programs before downloading the new ActiveX component

Click Yes, when prompted to install its ActiveX component.
(Note.. for Internet Explorer 7 users: If at any time you have trouble with the "Accept" button of the license, click on the "Zoom" tool located at the bottom right of the IE window and set the zoom to 75 %. Once the license has been accepted, reset to 100%.)
The program launches and downloads the latest definition files.Once the files are downloaded click on Next
Click on Scan Settings and configure as follows: Scan using the following Anti-Virus database:Extended

Scan Options:Scan ArchivesScan Mail Bases

Click OK and, under select a target to scan, select My Computer
When the scan is done, in the Scan is completed window (below), any infection is displayed.
There is no option to clean/disinfect, however, we need to analyze the information on the report.

To obtain the report:
Click on:Save Report As (above - red blinking arrow)
Next, in the Save as prompt, Save in area, select: Desktop
In the File name area, use KScan, or something similar
In Save as type, click the drop arrow and select: Text file [*.txt]
Then, click: Save
Please post the Kaspersky Online Scanner Report in your reply.